Poroelastic behaviour of a water-saturated limestone

被引：22

作者：

da Silva, Mikael Ramos ^{[1
]}

Schroeder, Christian ^{[1
]}

Verbrugge, Jean-Claude ^{[1
]}

机构：

[1] Univ Libre Bruxelles, Lab Jacques Verdeyen, Serv BATir, B-1050 Brussels, Belgium

来源：

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES | 2010年 / 47卷 / 05期

关键词：

Poroelasticity; Effective stress; Null test; Limestone; Biot coefficient; Skempton coefficient; PORE PRESSURE RESPONSE; UNDRAINED CHANGE; STRESS; ROCK; COMPRESSIBILITY; MODULI;

D O I：

10.1016/j.ijrmms.2010.04.004

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

This paper presents the results of an experimental study carried out on a porous, water-saturated limestone. First, a set of poroelastic parameters is obtained from a wide range of experiments (drained, undrained, pore pressure loading and unjacketed tests) conducted on the same sample at the same stress state. A "null'' test, inspired from unsaturated soil testing, is added to confirm the previous results, in particular the value of the Biot coefficient. Then, the variation of the measured parameters between samples is investigated. Finally, the influence of the stress state is studied in the framework of semilinear poroelasticity. Several expressions are compared to model the evolution of the drained bulk modulus as a function of Terzaghi's effective stress. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：797 / 807

页数：11

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